Synonyms for sponsor

noun

a sponsor is one who assumes a certain degree of responsibility for another in any of various ways the sponsors of a television program assume the costs of production; a patron is one who assumes the role of protector or benefactor of an artist, an institution, etc. usually in a financial capacity; a backer is one who lends support, esp. financial support, to someone or something but does not necessarily assume any responsibilities the magazine failed when it lost its backers; angel is a colloquial term for the backer of a theatrical enterprise